
.left-panel-container {
    margin: 15px;
    width: 160px;
    border: 2px #369 solid;
    border-radius: 7px;
    height: 700px;
    & li {
        display: block;
        text-align: center;
        width: 160px;
        height: 25px;
        list-style: none;
    }
    & li:hover {
        background-color: #7E87C2;
    }
    .active {
        background-color: #6F67C2;
    }
}